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v3.25.3

Common stock (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2025 shares
Class A [Member] |
Class of Stock [Line Items] |
Shares issued, beginning balance | 623,902
Treasury shares, beginning balance | (76,340)
Shares outstanding, beginning balance | 547,562
Conversions of Class A to Class B common stock | (24,138)
Conversions of Class A to Class B common stock, Outstanding | (24,138)
Shares issued, ending balance | 599,764
Treasury shares, ending balance | (76,340)
Shares outstanding, ending balance | 523,424
Class B [Member] |
Class of Stock [Line Items] |
Shares issued, beginning balance | 1,551,291,352
Treasury shares, beginning balance | (215,299,213)
Shares outstanding, beginning balance | 1,335,992,139
Conversions of Class A to Class B common stock | 36,207,000
Conversions of Class A to Class B common stock, Outstanding | 36,207,000
Shares issued, ending balance | 1,587,498,352
Treasury shares, ending balance | (215,299,213)
Shares outstanding, ending balance | 1,372,199,139

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